Bass Trap chords

U2

Key: 

Simplify chords 

  			This is the tab to one of the b-sides off the  
Unforgettable Fire EP. It also on some bootleg 
compilation CD's. There's quite a few guitar dubs  
but here's the main bits that I can figure out. 

This first bit repeats throughout the whole song: 
(C power chord).  
E |---------------------------|---------------------------|  
B |---------------------------|---------------------------|  
G |-------------5-------------|-------------5-------------|  
D |--------5------------------|--------5------------------|  
A |---3-----------------------|---3-----------------------|  
E |---------------------------|---------------------------| 

The main riff is:  
E |-----------------------------12-----|  
B |-----17----15----13----13-15----13--|  
G |--14----14----12----12--------------|  
D |------------------------------------|  
A |------------------------------------|  
E |------------------------------------| 

The other riff is:  
E |-----------------------------12-----|  
B |-----13----13----13----13-15--------|  
G |--12----12----12----12--------------|  
D |------------------------------------|  
A |------------------------------------|  
E |------------------------------------| 

Another bit alternates as follows:  
E |---------------------------|---------------------------| 
B |-----13----13----13-etc.---|-----15----15----15-etc.---| 
G |--12----12----12-----------|--14----14----14-----------| 
D |---------------------------|---------------------------| 
A |---------------------------|---------------------------| 
E |---------------------------|---------------------------| 

That's it as far as I can figure out, comments welcome. 
jules